CPO refers to the “co-packaging” with the ASIC chip to minimize electrical signal distances and address significant insertion loss challenges at high frequencies. The OIF CPO standard specifies single-mode communication and compact module designs. Today, data centers use a separate approach for optics and electronics, in which optical modules are connected to switches and routers through high-speed electrical interfaces. As data demands grow, these systems face limitations such as bandwidth constraints, latency issues, and space limitations. As datacenters strive to meet escalating demands for efficiency and bandwidth, particularly with the integration of AI and ML technologies, optics is poised to play a crucial role in shaping the future of interconnect architecture and performance. However, it's worth noting that Andy Bechtolsheim, co-founder of Arista and a long-standing visionary in data centre. This article provides a comprehensive overview of CPO optical modules, exploring their technology, benefits, challenges, and the pivotal role they play in future data centers and AI infrastructure. As for transmission quality, CPO addresses the problem of overloading.
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